function filterProperties(obj: Record<string, unknown>, keys: string[]): Record<string, unknown> {
  let newObject = {};

  for (const [key, value] of Object.entries(obj)) {
    if (keys.includes(key)) {
      newObject[key] = value;
    }
  }

  return newObject;
}

// No modificar: necesario para evaluar el resultado.
export { filterProperties };